Support for electric trolley mechanism.



F. 0. GOSEO.

SUPPORT FOR ELECTRIC TROLLEY MECHANISM. APPLICATION FILED IEB.13, 1904.RENEWED DBO. 8,1909,

1,091,734. Patented Mar.31,1-914.

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COLUMBIA WRAP}! co., WASHINGTON, D. c.

P. G. GOSEO.

SUPPORT FOR ELECTRIC TROLLBY MECHANISM.

APPLICATION FILED FBB.13, 1904. RENEWED D110. 8, 1909. 1,09 1,734.

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lllll Patented Mar. 31, 1914.

. W a a UNTTEE @TATES PATENT OFFTQE.

FREDERICK C. COS'EO, OF COLUMBUS, OHIO, ASSIGNOR, BY MES'NE ASSIGNMENTS,TO THE JEFFREY MANUFACTURING COMPANY, A CORPORATION OF OHIO.

SUPPORT FOR ELECTRIC TROLLEY MECHANISM.

Specification of Letters Iatent.

Patented Mar. 31, 1914.

Application filed. February 13, 1904, Serial No. 193,452. RenewedDecember 8, 1909. Serial No. 532,034.

To all whom it may concern Be it known that I, FREDERICK C. Cosmo, acitizen of the United States, residing at Columbus, in the county ofFranklin and State of Ohio, have invented certain new and usefulImprovements in Supports for Electric Trolley Mechanism, of which thefollowing is a specification, reference being had thereto to theaccompanying drawings.

This invention relates to improvements in trolley devices and trolleysupporting apparatus adapted for use on electric cars, particularlylocomotives of the class used for haulage purposes in and about minesand similar places.

One of the objects of my invention is to provide a trolley supportingmechanism with its parts so connected and arranged that they can bepositioned below the top surface of a car or locomotive frame.

A further object of the invention is to provide a mechanism which isentirely selfcontained, which is compact, and which may be readilyattached to or detached from a car or locomotive.

Figure 1 is a side view of a locomotive having attached thereto atrolley mechanism embodying my improvements some of the.

parts being broken away in order that others may be more clearlyillustrated. Fig. 2 is a vertical central section of the lower part ofthe trolley apparatus. tical cross sectional view through the base. Fig.4 is a plan view of the trolley base. Fig. 5 is a view partly inelevation and partly in cross section of the socket for the trolleybase. Fig. 6 is a perspective view of the ring which is secured to thelower end of the trolley base.

At 1 is indicated a car of the sort to which a trolley apparatus of thiskind can be applied. The car illustrated is a mining locomotive. It iswell known that in a mining locomotive it is necessary to economizespace both vertically and laterally because of the contractedpassageways through which the locomotive must travel. In the presentinstance the car and the trolley apparatus are so constructed andrelated that nothing of consequence is allowed to project above the topof the car except the trolley arm itself.

The side parts of the car or locomotive are made of relatively largecastings. In

one or in each of the side castings at a suit-' able point between theends of the car there Fig. 3 is a ver= is formed a cavity or chamber,indicated by 2. This can be somewhat contracted at the lower part, butpreferably is expanded or wicglened near the top of the car, as shown at4 indicates a bearing sleeve or tube which 1s fitted into the expandedpart 3 of the chamber in the car and serves as a base socket. It isformed with a horizontal flange 5 which supports it vertically and wlthlugs or webs 6 which are fitted into recesses in the metal at the top ofthe chamber and which serve to prevent rotation of the socket part 4,but do not interfere with its being readily lifted upward wheneverdeslred. Within this socket there is fitted the trolley base 7. This hasa cylindrical outer face fitting snugly the inner surface of the sockettube 4. It has a flange plate or ring at 8 which rests upon the flange 5of the socket. It can rotate freely within the socket and is preventedfrom separating therefrom by means of a ring 9, which is secured to itby screws 10 or equivalent de vices. The ring 9 lies immediately belowthe lower end of the socket tube 4 and the two parts 4 and 7 are thusheld loosely together so far as rotation is concerned, but are preventedfrom separating.

The trolley base 7 is cast with two ears 11, 11, extending backward fromthe vertical axis and these are provided near their outer ends withhorizontal bearing apertures 13 indicates the trolley arm as a whole.The central or main body part is preferably made of wood, which, at thelower end, is fitted into a socket 14 preferably of cast metal havingarms adapted to be clamped tightly against the wood. This socket 14 hasa pivot hearing at 15 and also a downward and backward extending hookarm '16. This hook arm engages loosely with the upper end of a springrod 16 Preferably this rod at the upper end has a stirrup 17 providedwith a pivot pin 18 which engages with the hook on arm 16. The stirrup17 is situated in the chamber 19 of the trolley base piece. The stempart of the spring rod or link extends downward into the chamber 2 inthe car body. Around the lower part of this rod or link there is placeda spring 20. At the lower end the spring is held by and it abuts againsta disk 21 secured to the lower end of the rod. At the upper end thespring abuts'against the trolley base, the latter preferably beingformed with an inward extending flange 28 of such character that thespring can press against it as shown in the drawings. The spring 20tends to force the disk 21 and the rod or link 16' downward and theforce thus exerted tends to pull downward on the hook arm 16 and forcethe trolley contact upward.

All of the parts connected with the lower end of the trolley arm can beturned around the vertical axis of the base sleeve or tube 1. The armtrails relatively backward from this axis, that is, in the directionopposite to that in which the vehicle is moving. As the car moves alongthere is more or less lateral swing of the arm because of the greater orless departures of the conductor wire from parallelism to the path ofthe vehicle. This swing is permitted by the pivotal connection of thebase socket and the bearing tube or sleeve 4L. It also permits thecomplete reversing of the trolley arm as the same movement as abovedescribed can be continued freely entirely around the vertical axis ofthe socket.

It will be seen that all of the movable parts here employed as mountingsat the base of the trolley arm are permanently united together as aunitary structure and permit the trolley arm, its hinge, its spring andspring abutting devices to be quickly put into position in the socketand as readily detached, bodily. It will be further seen that all of themovable parts except the trolley arm itself and the upper end of thespring link, are concealed and protected.

I have so arranged the parts that the upper end of the spring isvertically stationary and held against an abutment which is detachablewith the trolley arm. Under the circumstances where these devices areprincipallyused, I find this construction superior to the constructionswherein use is made of expansion springs having their upper endsvertically movable.

I am aware that it has been proposed to employ a compression springhaving its upper end movable and adapted to act through a plunger inpressing upward upon the trolley arm at a point above its main pivot;but in such constructions also the upper ends of the spring and theparts connected thereto are movable at points where they are apt to beexposed and to be interfered with by the accumulation of foreignmaterials that are deposited upon them. I am also aware that it has beenproposed to so connect a spring that its upper end is non-movable andits lower end movable; but the earlier proposed constructions embodyingthis feature were objectionable for the reason that it was foundnecessary to have all of the parts in exposed position above the frameof the locomotive or car.

I have shown a contact mechanism of the ordinary sort the illustrationin this respect being more or less conventional.

What I claim is:

1. A self-contained trolley arm and support, the said support beingadapt-ed to be set into or removed from a socket on a car, comprising abearing, a support for the trolley arm fitting and free to turn in thebearing and consisting of a tube to which the arm is pivotallyconnected, a spring below the said tube by which the trolley arm isforced into working position, and a connection between the spring andthe trolley arm through which the force exerted by the spring istransmitted to the arm.

2. A self-contained trolley arm and support, the said support beingadapted to be inserted into a socket formed in a car body and to befreely removable thereirom, com- )risin a Jair of concentricall disosed.

tubes to the inner one of which is pivoted the trolley arm, the outerone being adapted to be supported in the said socket, means for holdingthe tubes together against relative endwise movement whileleaving themfree.

to turn relatively about a longitudinal axis, a link connected with thetrolley arm and extending downward through the said concentric tubes andbeyond the lower ends thereof, and a spring surrounding the said linkbelow the lower ends of the tubes, the said spring hearing at its upperend against one of the tubes and being connected at its lower end withthe said link. 7

3. In combination with a railway car in which is formed a cavity, abearing tube which is open at its lower end and which fits in the upperportion of the said cavity and is held against rotation therein, atrolley base fitting in the bearing tube and free to turn therein abouta vertical axis, a trolley arm connected by a horizontal pivot with thetrolley base, a link extending downward from the trolley arm below thelower ends of the said bearing tube and trolley base, a springsurrounding the said link and connected therewith at its lower end, andan abutment for the upper end of the spring which is non-movablevertically.

4;. The combination of a railway car having formed in its frame a socketthat extends below the top of the car, a trolley arm and aself-contained removable support upon which the arm is movablymounted,'the support being arranged to be inserted into the said socketto freely turn therein about an axis longitudinal thereof, andcomprising a link extending from the trolley arm into the said socket,and a spring also situated in the socket arranged to operate through thelink to hold the trolley arm in operative position.

5. In combination with a railway car in which is formed a cavityextending below the top thereof, a socket-like trolley support fittinginto the said cavity so as to be freely removable therefrom, a trolleyarm connected with the said socket-like support by a pivotal joint, thetrolley arm and its support being free to turn about a vertical axis, alink extending vertically downward from the trolley arm, and a coilspring with its upper end bearing against the said socketlike supportand its lower end connected with the said link, these parts constitutinga selfcontained trolley support adapted to be removed from and insertedinto the said cavity in the car.

6. In a mounting and supporting mechanism for an electric trolleyapparatus, the combination of a trolley pole, a pole socket, a chamberedsupport, a non-rotary bearing sleeve detachably held in the chamber inthe support, a trolley supporting sleeve to which the pole socket isconnected by a horizontal pivot, the sleeve being rotatably mounted inthe bearing sleeve, means for holding the bearing sleeve and the trolleysupporting sleeve together longitudinally whereby the two sleeves aredetachable together from the chambered support, and a spring connectedto the trolley pole socket and detachable with the two sleeves from thechambered support.

7. In a trolley stand, the combination of a non-rotary outer bearingsleeve, an inner sleeve rotatably mounted in the bearing sleeve, atrolley arm pivotally connected to the inner sleeve, a detachable collarat the lower ends of the said sleeves connected to one of them andadapted to hold the inner sleeve against upward movement relative to theout-er sleeve, and a spring connected to the trolley arm and connectedwith the said sleeves.

8. In a mounting and supporting mechanism for an electric trolleyapparatus, the combination of a non-rotary outer bearing sleeve, aninner rotary sleeve fitted in the bearing sleeve and having a flange atits upper end resting upon the bearing sleeve, a detachable collar atthe lower end of the inner sleeve arranged to abut against the lower endof the bearing sleeve, a trolley pole socket pivotally connected to theinner rotatable sleeve, a spring, means connecting one end of the springwith the said trolley pole socket, and an abutment for the other end ofthe spring.

9. The combination of a railway car having formed in its frame a cavitythat extends below the top of the car, a trolley arm and aself-contained removable support upon which the arm is movably mounted,the sup port being arranged to be inserted into the said cavity tofreely turn therein about an axis longitudinal thereof, and comprising aconnection extending from the trolley arm into the said socket, and aspring also situated in the socket and arranged to operate through theconnection to hold the trolley arm in operative position.

10. The combination of a railway car having formed in its frame a cavitythat extends below the top of the car, a trolley arm support adapted tobe inserted into and to be freely removed from the cavity and to rotatetherein about a vertical axis, a trolley arm movably mounted on thesupport, a spring located within the cavity and engaging at one end withthe said support, and means for connecting the other end of the springwith the trolley arm to transmit the force of the spring to hold the armin operative position.

11. The combination of a railway car having formed in its frame a cavitythat extends below the top of the car, a trolley arm, I

a support upon which the arm is pivotally mounted, the support beingadapted to be inserted into and to be freely removed from the cavity andto rotate therein about a vertical axis, a spring located within thecavity and engaging at one end with the said support, and means forconnecting the other end of the spring with the trolley arm to transmitthe force of the spring to hold the arm in operative position.

12. The combination of a railway car having a downward extending cavityin the top part of its frame, a trolley arm, a support upon which thetrolley arm is pivotally mounted, means for holding the support topermit rotation about a vertical axis extending through the cavity, aspring located within the cavity and engaging with the support at oneend, the spring as a whole being movable with the support as it isrotated, and means for connecting the other end of the spring with thetrolley arm to hold the arm in operative position.

13. The combination of a railway car ha ing a downward ext-ending cavityin the top part of its frame, a trolley arm, a support upon which thetrolley arm is pivotally mounted, means for holding the support topermit rotation about a vertical axis extending through the cavity, aspring located within the cavity and engaging with the support at itsupper end, the spring as a whole being movable with the support as it isrotated, and means for connecting the lower end of the spring to thetrolley arm to hold the arm in operative position.

In testimony whereof I afiix my signature in presence of two witnesses.

FRED. G. GOSEO.

Witnesses SAMUEL A. GARDNER, CHARLES MoCoNKEY.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

